Inner classes not being included in jar file
anonymous, class, jar, java
Solution
You already found your specific answer, but here's a more general one.
As your modify your program, the set of classes with automatically generated names (e.g., `Main$2`) will change. Also, if you move your classes into a named package, your jar file will have to have a parallel directory structure. You don't want to have to update your makefile or build script every time this happens. Instead, you should use javac -d to specify a destination directory for the compiled class files, and then jar up this entire hierarchy.
Problem
I hava made a runnable jar file out of six classes: Main: Contains the main method, and specified in the manifest (I included a new line) Main$1 and Main$2: 2 anonymous inner classes that are in the main class. (Main$2 is in the main method, but I don't think that really matters.) Form Form$1: An anonymous inner class in Form WrapLayout I specify these inner classes when making the jar file, but when I look inside it (I am on mac) the inner classes are not in the jar! So when I run it, I get this: ``` Exception in thread "main" java.lang.NoClassDefFoundError: Main$2 at Main.main(Main.java:64) Caused by: java.lang.ClassNotFoundException: Main$2 at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 1 more ``` I can't figure out what's wrong. Can somebody please help? EDIT: I figured it out! Turns out, you need an escape character (\) in front of the dollar signs for the command to recognize them.